Module org.apache.lucene.queries

Package org.apache.lucene.queries.intervals

Class ConjunctionIntervalsSource

java.lang.Object

org.apache.lucene.queries.intervals.IntervalsSource

org.apache.lucene.queries.intervals.ConjunctionIntervalsSource

Direct Known Subclasses:

BlockIntervalsSource, ContainedByIntervalsSource, ContainingIntervalsSource, OverlappingIntervalsSource

abstract class ConjunctionIntervalsSource
extends IntervalsSource

Field Summary

Fields

Modifier and Type	Field	Description
protected final List<IntervalsSource>	subSources

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ConjunctionIntervalsSource(List<IntervalsSource> subSources)

Method Summary

Modifier and Type	Method	Description
protected abstract IntervalIterator	combine(List<IntervalIterator> iterators)
protected IntervalMatchesIterator	createMatchesIterator(IntervalIterator it, List<IntervalMatchesIterator> subs)	Create matches iterator from an advanced and validated interval iterator and a list of matches iterator of all the sub-sources
final IntervalIterator	intervals(String field, LeafReaderContext ctx)	Create an IntervalIterator exposing the minimum intervals defined by this IntervalsSource
final IntervalMatchesIterator	matches(String field, LeafReaderContext ctx, int doc)	Return a MatchesIterator over the intervals defined by this IntervalsSource for a given document and field
void	visit(String field, QueryVisitor visitor)	Expert: visit the tree of sources

Methods inherited from class org.apache.lucene.queries.intervals.IntervalsSource

equals, hashCode, minExtent, pullUpDisjunctions, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

subSources

protected final List<IntervalsSource> subSources

Constructor Details

ConjunctionIntervalsSource

protected ConjunctionIntervalsSource(List<IntervalsSource> subSources)

Method Details

visit

public void visit(String field,
 QueryVisitor visitor)

Description copied from class: IntervalsSource

Expert: visit the tree of sources

Specified by:

visit in class IntervalsSource

intervals

public final IntervalIterator intervals(String field,
 LeafReaderContext ctx)
                                 throws IOException

Description copied from class: IntervalsSource

Create an IntervalIterator exposing the minimum intervals defined by this IntervalsSource

Returns null if no intervals for this field exist in this segment

Specified by:

intervals in class IntervalsSource

Parameters:

field - the field to read positions from

ctx - the context for which to return the iterator

Throws:

IOException

combine

protected abstract IntervalIterator combine(List<IntervalIterator> iterators)

createMatchesIterator

protected IntervalMatchesIterator createMatchesIterator(IntervalIterator it,
 List<IntervalMatchesIterator> subs)

Create matches iterator from an advanced and validated interval iterator and a list of matches iterator of all the sub-sources

matches

public final IntervalMatchesIterator matches(String field,
 LeafReaderContext ctx,
 int doc)
                                      throws IOException

Description copied from class: IntervalsSource

Return a MatchesIterator over the intervals defined by this IntervalsSource for a given document and field

Returns null if no intervals exist in the given document and field

Specified by:

matches in class IntervalsSource

Parameters:

field - the field to read positions from

ctx - the document's context

doc - the document to return matches for

Throws:

IOException